485.86% is the change from 99 to 580
Calculation steps:
[( 580 - 99 ) ÷ 99] x 100 = 485.86%
Formula
Percentage change = [(580 - 99) / 99] x 100
Subtract the new number by the original number
580 - 99 = 481
481 ÷ 99 = 4.858585858585859
4.858585858585859 x 100 = 485.86%